About ATI

Protecting People, Products and Critical Infrastructure
A History of Innovation
Air Techniques International (ATI) is a leading designer and manufacturer of specialized test equipment for HEPA filters, filter media and cartridges, respirators, and protective masks. ATI offers a comprehensive portfolio of products ranging from small portable units for on-site certification to large systems used by major producers and test laboratories. ATI’s solutions include HEPA filter leak test equipment used to test and certify pharmaceutical and medical cleanrooms, containment facilities, and biosafety cabinets. Other solutions include automated filter testers used to test flat sheet media, respiratory PPE for occupational health and safety standards, and filter cartridges for nuclear, life sciences, pharmaceutical, biosafety, and defense applications.
In 1961, we introduced the world’s first portable photometer. Today, our photometers continue to lead the industry and are trusted in critical applications that safeguard human health.
In 2016, ATI acquired DOP Solutions, a UK-based company with over 25 years of experience in the industry. This strategic acquisition allowed ATI to establish local operations in the UK, offering improved technical support and services to our customers and partners within the EMEA region. The UK applications team is well-equipped to provide guidance on special projects and conduct local training and certification classes.
Milestones
1996 | Developed the TDA-2G, the world’s first digital aerosol photometer | |
Developed the 4B Laskin-Nozzle Aerosol Generator designed to test filter systems, small or large | ||
1997 | Introduced the TDA-100P Penetrometer/Filter Tester, replacing the MIL-STD 282 test requirement with a cold nebulized aerosol, which remains the industry standard | |
1999 | Introduced the TDA-100S Penetrometer/Filter Tester, a salt-based aerosol version of the TDA-100P | |
Awarded ISO 9001 Certification at its Owings Mills, MD USA facility | ||
2004 | Introduced the 2H Aerosol Photometer to replace the TDA-2G | |
2005 | Developed the Joint Services Mask Leakage Tester (JSMLT) for integrity testing of U.S. military protective masks | |
2012 | Launched the 2i Aerosol Photometer, the only photometer providing full functionality and operational control from the scanning probe | |
Introduced the 6D Laskin-Nozzle Aerosol Generator with integrated compressor | ||
2016 | Acquired DOP Solutions, a UK-based company with over 25 years of experience in manufacturing aerosol detection and generation instruments | |
Developed the Polaron™ real-time Biodetection sensor | ||
2017 | Introduced the 5D Thermal Aerosol Generator as a replacement for the 5C Generator | |
2018 | Launched the 100X Automated Filter Tester as a replacement for the 100-P, to test and validate filter media, replaceable particulate filters, and masks | |
2019 | Awarded ISO 9001 Certification at its Letchworth, UK facility | |
2024 | Introduced the 2i iProbe Plus Scanning Probe for the 2i Aerosol Photometer, providing secure data storage, reporting, and traceability in the palm of your hand | |
2025 | Awarded ISO/IEC 17025:2017 Accreditation at its Owings Mills, MD USA and Letchworth, UK facilities |
Global Reach
ATI’s products are trusted and used by thousands of customers in over 100 countries. With dozens of dedicated sales and service partners, we’ve established a robust network to provide local assistance as needed. Our products have made a difference in the lives of cleanroom certifiers, production engineers, first responders, and military service members around the globe, and they will continue to play a vital role as we advance the development of innovative technologies to fulfill our mission to Protect People, Products, and Critical Infrastructure.
Air Techniques International is ISO 9001 certified and ISO/IEC 17025 accredited.